1.Research and Outlook on The Application of Radar-based Non-contact Health Monitoring Technology
Jia-Bin ZHONG ; Qing ZHANG ; Shuai-Wei QIAN
Progress in Biochemistry and Biophysics 2026;53(4):982-999
Radar-based non-contact health monitoring technology (RBNHMT) has emerged as a transformative paradigm in continuous health sensing, enabling non-invasive and continuous monitoring of physiological parameters and behavioral patterns by transmitting electromagnetic waves, analyzing the reflected signals, and detecting subtle bodily movements—ranging from millimeter-scale chest wall displacements due to respiration to micro-scale vibrations associated with cardiac activity—ultimately transforming them into quantifiable health data. Distinguished by its non-contact operation, inherent privacy preservation, and adaptability to diverse scenarios, RBNHMT exhibits stronger resistance to environmental interference than conventional contact-based monitoring, and has solidified its position as a prominent and dynamic research focus in the field of non-contact health monitoring. Currently, significant and multifaceted progress has been made across several key areas. In human activity recognition (HAR), systems leveraging micro-Doppler signatures or point cloud sequences achieve high-precision detection of gait, gestures, and fall events, with state-of-the-art deep learning-based models achieving accuracy rates exceeding 99% in controlled experimental settings. For vital sign and sleep monitoring, it not only tracks respiratory and heart rates continuously but also extracts clinically relevant metrics such as heart rate variability (HRV) for autonomic nervous system assessment and estimates blood pressure through indirect methods like pulse transit time analysis, while maintaining robustness in dynamic settings through advanced motion compensation algorithms. In sleep monitoring, it further enables sleep posture classification and apnea event detection. In emotion and stress recognition, it provides a non-intrusive approach for psychological assessment by analyzing autonomic-response physiological signal patterns or behavioral features. Furthermore, its applications in auxiliary medical diagnosis have expanded to promising interdisciplinary areas such as non-contact heart sound auscultation, radar-based screening for obstructive sleep apnea (OSA), and emerging research into breast cancer detection using microwave and millimeter-wave imaging techniques. However, several challenges impede its practical deployment. Signal quality is significantly compromised by multipath interference in complex indoor environments and clutter from static objects, and by motion artifacts in dynamic scenarios where gross body movements obscure the subtle physiological signals. Algorithmically, separating signals from multiple targets in close proximity and calibrating for substantial individual physiological differences, such as body habitus, baseline vital signs, remain difficult and limit generalizability. Hardware design also faces the challenge of balancing power consumption, cost, integration, and performance, often requiring trade-offs that constrain miniaturization, battery life, or measurement sensitivity. Future advancement, therefore, requires collaborative and targeted innovation across multiple dimensions. Algorithmically, developing adaptive signal processing models based on emerging paradigms such as few-shot learning (for user-specific calibration with minimal data) and reinforcement learning (for dynamic noise suppression) is essential. At the hardware level, highly integrated radar SoCs with embedded processing capabilities and advanced packaging technologies are crucial for achieving the dual goals of device miniaturization and cost reduction without sacrificing performance. At the system level, fusing radar data with complementary modalities such as infrared and acoustic sensing can create a synergistic, multi-modal framework that significantly enhances perceptual robustness and reliability in complex, real-world environments. This review provides a comprehensive synthesis that systematically summarizes the relevant theoretical foundations and application progress, and offers an in-depth analysis of the current technical bottlenecks. It aims to provide a clear development path and a foundational academic reference for the in-depth integration and practical application of RBNHMT in critical scenarios including rehabilitation engineering, smart elderly care, in-vehicle health monitoring, and beyond, thereby offering innovative technical support for the vision of universal, proactive, and personalized health management.
2.Clinical Efficacy of Juanbitang Hot Compress Pack Combined with Intensive Rehabilitation Training in Ameliorating Hemiplegia After Stroke
Yuqin SHENG ; Yong YU ; Yan ZHANG ; Yuqing XIE ; Qing LIN ; Qian HU ; Longyu ZHANG ; Hongmei XU ; Xiaohong FAN ; Shouliang MA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(17):210-218
ObjectiveTo explore the clinical efficacy of Juanbitang hot compress pack combined with intensive rehabilitation training in stroke patients with hemiplegia. MethodsA total of 80 stroke patients with hemiplegia were selected and assigned into a control group (40 cases) and an observation group (40 cases) according to the random number table method. The control group received conventional rehabilitation training and nursing intervention,while the observation group was additionally treated with Juanbitang hot compress pack. The two groups were compared in terms of the neurological function (national institute of health stroke scale score,NIHSS score),muscle strength,motor function (fugl-meyer assessment scale score,FMA score),daily living activity (modified barthel index,MBI),balance ability (berg balance scale score,BBS score),trunk control ability (Sheikh Trunk Control Test score,Sheikh TCT score),and homocysteine (Hcy) level before and after treatment. ResultsAfter treatment,the observation group had lower NIHSS score and Hcy level than the control group (P<0.05). The total response rate of the observation group (97.50%) was higher than that of the control group (77.50%). The scores of upper limb and lower limb FMA,MBI,BBS,and Sheikh TCT in the observation group were all higher than those in the control group (P<0.05). ConclusionThe application of Juanbitang hot compress pack combined with rehabilitation training can effectively improve the neurological function,muscle strength,motor function,daily living ability,balance ability,and trunk control ability and reduce the Hcy level in stroke patients with hemiplegia,demonstrating enhanced clinical efficacy.
3.Mechanism of high glucose-regulated SIRT6 expression affecting the functions of retinal pigment epithelial cells and vascular endothelial cells
Qian ZHANG ; Mingxiu LUO ; Yu GUO ; Feiyang LUO ; Yuan MA ; Qing YAO
International Eye Science 2026;26(10):1698-1709
AIM: To investigate the effects of high-concentration glucose on the cell viability of retinal pigment epithelialcells(ARPE-19)/ human umbilical vein endothelial cells(HUVEC)cells, as well as on the expression levels of sirtuin 6(SIRT6).
METHODS:ARPE-19 and HUVEC cells were cultured for 48 h in media containing various glucose concentrations(5.5, 25, 50, 75, 100 mmol/L)and cellular morphology was observed under an optical microscope.Cell viability was assessed using the CCK-8 assay. Flow cytometry was utilized to evaluate apoptosis levels, and Western blot analysis was conducted to measure the expression of Bcl-2 and SIRT6. ARPE-19/HUVEC cells were treated with 50 mmol/L glucose for 48 h, after which immunofluorescence staining was performed to determine the subcellular localization and expression level of SIRT6 protein. In parallel, cells receiving the same treatment were harvested at different time points(0, 6, 12, 24, 36, 48, and 72 h), and the temporal changes in SIRT6 protein expression were assessed by Western blot analysis. SIRT6 overexpressing stable ARPE-19/HUVEC cell lines were constructed. Western blot was performed to detect the effects of SIRT6 overexpression on the expression levels of glucose transporters in ARPE-19/HUVEC cells treated with high glucose(50 mmol/L glucose).
RESULTS:Compared with the 5.5 mmol/L glucose group, cell number was decreased and cell viability was significantly reduced in ARPE19/HUVEC cells with increasing glucose concentrations(all P<0.01). Meanwhile, the protein expression level of SIRT6 was markedly downregulated(P<0.05). Such inhibitory effects exhibited both concentration-and time-dependent patterns(all P<0.05). Furthermore, high glucose induced cell apoptosis and downregulated the protein expression of Bcl-2(P<0.05). Immunofluorescence staining revealed that SIRT6 protein was predominantly localized in the nucleus after 48 h of high-glucose treatment, accompanied by pyknosis and nuclear fragmentation. After incubation with highg-lucose medium(50 mmol/L glucose)for different durations, long-term high-glucose intervention was found to reduce SIRT6 protein expression in ARPE19/HUVEC cells. Successful construction of the SIRT6-overexpressing stable ARPE-19/HUVEC cell lines was confirmed via immunofluorescence and Western blotting. Western blot analysis revealed that, compared with the HG+LV-con group, the HG+LV-SIRT6 group exhibited no significant differences in GLUT1 or GLUT4 expression in ARPE-19 cells, whereas GLUT3 expression was elevated(P<0.05). Compared with the HG+LV-con group, the HG+LV-SIRT6 group showed no significant change in GLUT1 expression, while GLUT3 and GLUT4 levels were increased(both P<0.05).
CONCLUSION:High-concentration glucose-reduce the proliferative activity of ARPE-19/HUVEC cells, induce apoptosis, and downregulate SIRT6 expression. SIRT6 may alleviate high glucose-induced retinal cell damage by promoting the expression of glucose transporters.
4.O-glycosylation and DNA Damage Repair in Tumors
Wen-Qian LI ; Jing-Ya GUO ; Qing-Lei HANG
Chinese Journal of Biochemistry and Molecular Biology 2025;41(10):1478-1488
O-glycosylation(including mucin-type O-glycosylation and O-GlcNAcylation),as a critical post-translational modification(PTM),regulates protein function,stability,and subcellular localization through the addition of glycan chains to serine or threonine residues,which participates in cellular signa-ling,metabolic regulation,and stress responses.DNA damage refers to the disruption of genomic integri-ty caused by endogenous factors(e.g.,metabolic byproducts,replication errors)or exogenous agents(e.g.,radiation,chemical substances),leading to carcinogenesis,aging,and genetic disorders.To counteract DNA lesions,organisms have evolved the DNA damage response(DDR)system,which or-chestrates complex protein networks to detect DNA damage and facilitate repair processes.Emerging evi-dence indicates that O-glycosylation can modulate DDR by influencing the activity,localization,and in-teractions of DNA repair-associated proteins.However,the precise mechanisms underlying O-glycosyla-tion-mediated DDR remain to be clarified.This review systematically summarizes:(1)the biosynthetic pathways of mucin-type O-glycosylation and O-GlcNAcylation,the cascade reactions in DDR;and(2)current research advances regarding O-glycosylation in tumor-associated DDR.Furthermore,we propose novel mechanistic perspectives and therapeutic strategies targeting O-glycosylation-mediated DDR dysreg-ulation in malignancies,aiming to provide a theoretical basis for tumor treatment.
5.Analysis and policy recommendations of Healthy Zhejiang assessment results based on Non-parametric Tests
Wen-jie LAI ; Jia-huan WAN ; Qian HAO ; Qing SHEN
Chinese Journal of Health Policy 2025;18(1):28-33
Objective:To analyze the results of Healthy Zhejiang assessment and reveal the weakness in the process of Healthy Zhejiang construction,in order to propose suggestions for promoting the high-quality of Healthy Zhejiang construction.Methods:Descriptive statistics were used to analyze the points-deduction rates of the assessment indicators of Healthy Zhejiang in 90 counties(county-level cities and districts)of Zhejiang Province and non-parametric tests were used to analyze the results of Healthy Zhejiang assessment from 2020 to 2023.Results:The overall effect of Healthy Zhejiang construction from 2020 to 2023 was remarkable,but there were inadequacies and weakness in four aspects:residents'proactive health awareness,primary healthcare service capacity,healthy living environments,and the construction and management of sports facilities.Conclusions:It is still necessary to formulate multifaceted health education program,strengthen the construction of the primary healthcare service system,improve the collection,transportation and disposal system of rural domestic waste,and continuously promote the high-quality development of public sports service.
6.An Exploratory Experiment on the Dynamic Structural Change of ATP Synthase
Yi-Xuan LIU ; Yang LIU ; Wen-Yuan ZHU ; Xiao-Qian HU ; Zeng-Yi CHANG ; Yong-Mei QIN ; Qing-Song WANG
Chinese Journal of Biochemistry and Molecular Biology 2025;41(5):625-631
The lab module of exploratory experiment is newly designed in the practical course of bio-chemistry.Here we describe one of the experimental projects,and it originates from new scientific re-search results on the dynamic structure of ATP synthase.This exploratory experiment is organized in the form of real scientific research,which would fully mobilize the initiative and creativity of students in learning theoretical knowledge and experimental technology.Students work in groups and start with refer-ence reading.Through cooperation,they must develop certain experimental plan,handle samples with photocrosslinking technique and utilize the high-throughput electrophoresis method to analyze the dynamic structural change of ε subunit in ATP synthase under different physiological conditions.High quality re-sults from high-throughput electrophoresis can only be obtained through optimized operation and treat-ment,from which students would experience the process of technological innovation.The teaching process of this lab module embodies the student-centered teaching concept and is widely approved and supported by students.The project of ATP synthase closely combines the content of lab course with cut-ting-edge technology.Students can deeply experience the importance of experimental technology innova-tion in solving scientific problems.The practical ability of students would be comprehensively improved through this lab module.
7.Efficacy and safety of liposomal bupivacaine in transversus abdominis plane block for post-cesarean analgesia
Xiaohua GUO ; Qian CHEN ; Qing ZHAO ; Xinying GUO ; Yongying PAN ; Wanqing JI ; Yulin JIN
The Journal of Practical Medicine 2025;41(11):1724-1729
Objective To comparatively evaluate the clinical efficacy of liposomal bupivacaine and ropiva-caine in transversus abdominis plane(TAP)block combined with intravenous patient-controlled analgesia(PCA)following cesarean section,and to explore the analgesic advantages of liposomal bupivacaine.Methods Eighty parturients scheduled for elective cesarean section were recruited and randomly allocated into two groups via a random number table:the liposomal bupivacaine group and the ropivacaine group.At the conclusion of the surgical procedure,both groups underwent ultrasound-guided bilateral TAP block.In the ropivacaine group,20 mL of 0.5%ropivacaine was administered per side.In the liposomal bupivacaine group,266 mg of liposomal bupivacaine was dissolved in 0.9%normal saline to a total volume of 40 mL,with 20 mL injected per side.The following parameters were compared between the two groups:Visual Analog Scale(VAS)scores at rest and during movement at various postop-erative time points,the overall scores of the 15-item Quality of Recovery(QoR-15)scale,postoperative opioid consumption,the time to first ambulation,the time to first flatus,and the incidence of adverse drug reactions such as nausea,vomiting,constipation,and pruritus.Results In comparison with the ropivacaine group,the liposomal bupivacaine group exhibited significantly lower Visual Analogue Scale(VAS)scores both at rest and during move-ment at 12 hours,24 hours,and 48 hours postoperatively(P<0.001).Significantly higher Quality of Recovery-15(QoR-15)scores were recorded in the liposomal bupivacaine group at 24 hours and during the 24-48-hour period postoperatively(P<0.001).The postoperative opioid consumption within 48 hours was markedly lower in the liposo-mal bupivacaine group(P<0.001).The time to first flatus was significantly shorter in the liposomal bupivacaine group(P<0.001).No significant differences were detected in the incidence of nausea,vomiting,or constipation between the two groups(P>0.05),and no cases of pruritus or other severe adverse reactions were observed.Conclusion Liposomal bupivacaine used for TAP block following cesarean section offers extended analgesia,reduces the need for opioids,enhances the quality of postoperative recovery,promotes gastrointestinal motility,and demonstrates excellent safety.
8.Underlying target of bullatine A in treating rheumatoid arthritis based on LiP-SMap drug target proteomics
Hao-hong ZHANG ; Nan-ting ZOU ; Chun-fei ZHANG ; Qing-yan MO ; Ming-qian JU ; Xiao-hong LI ; Shuai LIU ; Mao-kui HUANG ; Hong-yun WANG ; Chun-ping WAN
Chinese Pharmacological Bulletin 2025;41(6):1072-1078
Aim To identify the underlying target of bullatine A(BA)against rheumatoid arthritis(RA)u-sing limited proteolysis-small molecule mapping(LiP-SMap)drug target proteomics and to provide a scientif-ic basis for clinical application of Aconiti brachypodi Radix in the treatment of RA.Methods LiP-SMap drug target proteomics was employed to perform bioin-formatics analysis for comparing and validating the dif-ferential protein expression after BA intervention.A collagen-induced arthritis(CIA)model was estab-lished in DBA/1 mice using bovine type Ⅱ collagen.The mice were then divided into the CIA model group,methotrexate-positive control group(MTX group),and BA groups(10 mg·kg-1 and 20 mg·kg-1)based on their clinical scores.After drug intervention,the thera-peutic efficacy against RA was assessed by joint index scores and foot thickness measurements.Histopatholog-ical changes in the arthritic joints of CIA mice were e-valuated using hematoxylin and eosin(HE)staining.Enzyme-linked immunosorbent assay(ELISA)was employed to detect inflammatory cytokines interleukin-17(IL-17)and total IgG and IgG3 anti-collagen-spe-cific antibodies levels from the serum of CIA mice.Flow cytometry was used to detect the expression levels of intracellular Th17 cells(IL-17+CD4+T cells)and Th1 cells(IFN-γ+CD4+T cells).Fluorescent quanti-tative PCR was performed to detect the expression of genes related to differential proteins.Results The proteomic analysis identified Serpinb1a as a protein with strong binding affinity to BA,and KEGG enrich-ment analysis indicated IL-17 signaling pathway was a crucial pathway of BA in against RA.BA treatment significantly reduced clinical scores and foot thickness,improved local arthritis symptoms in CIA mice,and al-leviated inflammatory cell infiltration into arthritic joints(P<0.05).Differential protein validation re-sults showed that BA had strong affinity with Serpinb1a(-5.92 kJ·mol-1)and downregulated the expres-sion of Serpinb1a mRNA.Furthermore,the administra-tion of BA markedly reduced serum IL-17 A levels from CIA mice,inhibited the expression of intracellular IL-17 A and IFN-γ cytokines in splenic CD4+T cells(P<0.05),and significantly downregulated the transcrip-tional expression of IL-17F(P<0.05).Conclusion BA exhibits therapeutic effects on collagen-induced arthritis,and its mechanism of action may involve the regulation of Serpinb1a and the IL-17 signaling path-way.
9.Evaluation of Hemolytic Performance of Cellulose Hemostatic Products
Qing-qing HOU ; Qin-lian JIAO ; Chun-xia QIAO ; Zi-ye WANG ; Xiao-yan WANG ; Wen-qian MA ; Zeng-xiang LIU ; Xiao-xia SUN
Progress in Modern Biomedicine 2025;25(9):1488-1495
Objective:To compare the differences in the evaluation of hemolysis performance of cellulose hemostatic materials using different detection methods and test media,and to explore a m ore reasonable testing plan for such products.Methods:Hemolysis tests were conducted on cellulose hemostatic materials using the absorbance measurement hemolysis method and hemoglobin concentration measurement hemolysis method in accordance with YY/T 1651.1-2019 standard.We compared the changes in hemolysis rate,pH value,and osmotic pressure under different experimental media.Results:Under the same experimental method,compared to SC,the hemolysis results using PBS as the extraction medium are smaller,and the changes in pH and osmotic pressure are closer to the normal range of human body changes.Conclusions:The changes in pH and osmotic pressure may be one of the reasons for the high hemolysis rate of cellulose hemostatic materials.Choosing PBS with buffering effect as the leaching medium may be more suitable for evaluating the hemolysis performance of cellulose hemostatic materials.
10.Mechanism of action of D-limonene on steatosis in primary hepatocytes based on AMPK/ACC/CPT1A signaling pathway
Qian-jun REN ; Su LI ; Yu-qing CHEN ; Yin-ying LIAO ; Chun-ni LIANG ; Rui-chao FANG ; Xu-dong LIU ; Xiao-fang ZHAO
Chinese Pharmacological Bulletin 2025;41(9):1665-1672
Aim To explore the effects of D-limonene on the steatosis of primary mouse hepatocytes and its potential mechanism of action.Methods Oleic acid-induced steatosis in primary mouse hepatocytes was used as a model to observe the effects of D-limonene on cell viability,cellular lipid content,and intracellular expression of proteins such as AMP-activated protein kinase(AMPK),acetyl-coenzyme A carboxylase 1(ACC1),and carnitine palmitoyl transferase 1A(CPT1A).Results It was found that a low dose of D-limonene could effectively enhance the viability of primary mouse hepatocytes.When oleic acid at a con-centration of 300 μmol·L-1 successfully induced steatosis in primary mouse hepatocytes,D-limonene re-duced the lipid content of the cells,and D-limonene up-regulated the cellular AMPK expression level,down-regulated the cellular ACC1 and fatty acid synthetase(FAS)expression levels,which in turn promoted the overexpression of CPT1A.Conclusions D-limonene has the effect of reducing lipid deposition in primary mouse hepatocytes,and the mechanisms may be related to the activation of AMPK,the inhibitions of ACC1 and FAS,and the up-regulation of CPT1A protein expres-sion level.

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